February 2019
Intermediate to advanced
292 pages
6h 55m
English
Content preview from The Ray Tracer ChallengeBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Implementing a Plane
A plane is a perfectly flat surface that extends infinitely in two dimensions. For simplicity, your ray tracer will implement a plane in xz—that is, extending infinitely far in both x and z dimensions, passing through the origin. Using transformation matrices, though, you’ll be able to rotate and translate your planes into any orientation you like.
Because a plane has no curvature, its normal vector is constant everywhere—it doesn’t change. Every single point on the plane has the same normal: vector(0, 1, 0). This means that implementing the local_normal_at function for the plane is rather uninteresting! Add the following test to check the expected normal vector for a few arbitrary points on the plane. It assumes that the ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.